SHIELD METAL ARC WELDING (SMAW)

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NSS-347

Specification
AWS Specification: AWS A5.4 E347-16
JIS Specification: D347-16
Other Specification: DIN E7l 199 Nb26
Description
  • NSS-347 is composed of 19%C4 - 9%Ni-Cb
  • Features stable resistance to intergranular corrosion than NSS-308L due to the addition of columbium as carbon stabilizer
  • Excellent creep rupture property at high temperature

 

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cr

Ni

 Nb & Ta

0.05

0.44

1.73

19.93

10.06

 0.68

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 

638 (93)

39

 

SIZE AND RECOMMENDED CURRENT RANGE: AC, DC (+)

DIAMETER (mm)

1.6

2.0

2.5

3.2

 4.0 5.0

LENGTH (mm)

250

250

300

350

 350 350

Current Amp

Flat

30 - 45

35 - 60

55 - 80

70 - 120

 100 - 150 150 -220

Vertical & Overhead

25 - 40

30 - 50

50 - 70

65 - 105

 85 - 135 -

Welding Positions: ALL POSITIONS 
Approvals: N/A

NOTE:

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and test results for mechanical properties, deposit, or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design, and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.

  • Welding of AISI type 321 (18%Cr-8%Ni-Ti) and AISI type 347 (18%Cr-8%Ni-Cb) 
  • Remove dirt, such as oil and dust from the groove
  • Pre-heat is not necessary
  • Keep the arc length as short as possible
  • Rebake the electrode at 200-250°C for about one hour before use

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